: a statistical test involving confidence limits for the random variable t of a t distribution and used especially in testing hypotheses about means of normal distributions when the standard deviations are unknown

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of t-test was in 1932

Dictionary Entries Near t-test

Cite this Entry

“T-test.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/t-test. Accessed 23 Jul. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!